Never ignore you mate.. wasn't that concerned to be honest with the .1 kws error in my calculations at this stage, with everybody doubting my posted dyno sheet..

Actually it's 4Kw, which is about 5 bhp - which is nearly 25% of your claimed figures, so not insignificant.

Putting aside concerns about M mode being on and M off in your biggest claimed gains, are you saying above that your before and after mid-pipe mod runs were not done straight back to back? The testing we did at Evolve was literally do some runs, change the mid-pipe, do some runs.

I expect the gains to get a little bigger after some time on the road and some ECU adaptation - which I'm sure is what you're desribing with the runs getting better and better